isolate

• vt.分離する；隔離する；絶縁する
• n. [生物]隔離された集団
• vi. 隔離する; 隔離する
• adj. 隔離された; 孤立した

isle（島）から派生して島を作る、分離する、隔離する、語源的にはinsulateと同じ。

isolate (v.)

by 1786, a new formation from isolated (q.v.).

The translation of this work is well performed, excepting that fault from which few translations are wholly exempt, and which is daily tending to corrupt our language, the adoption of French expressions. We have here evasion for escape, twice or more times repeated; brigands very frequently; we have the unnecessary and foolish word isolate; and, if we mistake not, paralize, which at least has crept in through a similar channel. Translators cannot be too careful on this point, as it is a temptation to which they are constantly exposed. ["The British Critic," April 1799]

As a noun from 1890, from earlier adjectival use (1819).

1. Political influence is being used to shape public opinion and isolate critics.

政治的影響が世論を左右し、批評家たちを孤立させるために使われている。

2.A chemist can isolate the oxygen from the hydrogen in water.

化学者は水中の酸素と水素を分解することができる。

3.Do not isolate yourself from others.

自分を孤立させないでください。

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4.We should never isolate ourselves from the masses.

私たちは決して大衆から離れることはできません。

5.Their solution was to isolate specific clones of B cells and fuse them with cancer cells.

彼らの解決策は特定のB細胞クローンを分離し、それを癌細胞と結合することである。